com.gs.collections.impl.map.AbstractMapIterable Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of gs-collections Show documentation
GS Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
There is a newer version: 7.0.3
Show newest version
/*
 * Copyright 2015 Goldman Sachs.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.gs.collections.impl.map;

import java.util.Map;

import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.function.Function0;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.Predicate2;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.map.MapIterable;
import com.gs.collections.impl.AbstractRichIterable;

public abstract class AbstractMapIterable extends AbstractRichIterable implements MapIterable
{
    protected int keyAndValueHashCode(K key, V value)
    {
        return (key == null ? 0 : key.hashCode()) ^ (value == null ? 0 : value.hashCode());
    }

    protected boolean keyAndValueEquals(K key, V value, Map map)
    {
        if (value == null && !map.containsKey(key))
        {
            return false;
        }

        V oValue = map.get(key);
        return oValue == value || oValue != null && oValue.equals(value);
    }

    public  A ifPresentApply(K key, Function function)
    {
        V result = this.get(key);
        return this.isAbsent(result, key) ? null : function.valueOf(result);
    }

    protected boolean isAbsent(V result, K key)
    {
        return result == null && !this.containsKey(key);
    }

    public V getIfAbsent(K key, Function0 function)
    {
        V result = this.get(key);
        if (!this.isAbsent(result, key))
        {
            return result;
        }
        return function.value();
    }

    public V getIfAbsentValue(K key, V value)
    {
        V result = this.get(key);
        if (!this.isAbsent(result, key))
        {
            return result;
        }
        return value;
    }

    public  V getIfAbsentWith(
            K key,
            Function function,
            P parameter)
    {
        V result = this.get(key);
        if (this.isAbsent(result, key))
        {
            result = function.valueOf(parameter);
        }
        return result;
    }

    @Override
    public boolean anySatisfy(Predicate predicate)
    {
        return this.valuesView().anySatisfy(predicate);
    }

    @Override
    public 
 boolean anySatisfyWith(Predicate2 predicate, P parameter)
    {
        return this.valuesView().anySatisfyWith(predicate, parameter);
    }

    @Override
    public boolean allSatisfy(Predicate predicate)
    {
        return this.valuesView().allSatisfy(predicate);
    }

    @Override
    public 
 boolean allSatisfyWith(Predicate2 predicate, P parameter)
    {
        return this.valuesView().allSatisfyWith(predicate, parameter);
    }

    @Override
    public boolean noneSatisfy(Predicate predicate)
    {
        return this.valuesView().noneSatisfy(predicate);
    }

    @Override
    public 
 boolean noneSatisfyWith(Predicate2 predicate, P parameter)
    {
        return this.valuesView().noneSatisfyWith(predicate, parameter);
    }

    @Override
    public LazyIterable asLazy()
    {
        return this.valuesView().asLazy();
    }

    public RichIterable> chunk(int size)
    {
        return this.valuesView().chunk(size);
    }

    public void each(Procedure procedure)
    {
        this.forEachValue(procedure);
    }

    @Override
    public 
 void forEachWith(Procedure2 procedure2, P parameter)
    {
        this.valuesView().forEachWith(procedure2, parameter);
    }

    @Override
    public void forEachWithIndex(ObjectIntProcedure objectIntProcedure)
    {
        this.valuesView().forEachWithIndex(objectIntProcedure);
    }

    public void forEachKey(Procedure procedure)
    {
        this.keysView().forEach(procedure);
    }

    public void forEachValue(Procedure procedure)
    {
        this.valuesView().forEach(procedure);
    }

    @Override
    public boolean contains(Object object)
    {
        return this.containsValue(object);
    }

    @Override
    public V detect(Predicate predicate)
    {
        return this.valuesView().detect(predicate);
    }

    @Override
    public 
 V detectWith(Predicate2 predicate, P parameter)
    {
        return this.valuesView().detectWith(predicate, parameter);
    }

    @Override
    public V detectIfNone(Predicate predicate, Function0 function)
    {
        return this.valuesView().detectIfNone(predicate, function);
    }

    @Override
    public  V detectWithIfNone(Predicate2 predicate, P parameter, Function0 function)
    {
        return this.valuesView().detectWithIfNone(predicate, parameter, function);
    }

    public V getFirst()
    {
        return this.valuesView().getFirst();
    }

    public V getLast()
    {
        return this.valuesView().getLast();
    }

    @Override
    public Object[] toArray()
    {
        return this.valuesView().toArray();
    }

    @Override
    public  T[] toArray(T[] a)
    {
        return this.valuesView().toArray(a);
    }
}